​Marine Accident

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Marine banner image.

​Marine accident investigations typically refer to investigations involving selected marine accidents on or under the navigable waters, internal waters, or the territorial seas of the United States (US) and accidents involving US flagged vessels that occur beyond US waters.

Please review our Information for Survivors, Families, and Friends Brochure​ that describes what survivors, family, and friends can expect throughout a marine accident investigation by the NTSB and additional details related to the information provided below.​

Assistance for Marine Accident Investigations

​Although there is no requirement for TDA to respond to marine accidents, our specialists work with the NTSB’s investigator-in-charge (IIC) who is responsible for leading the safety investigation, the NTSB marine investigative team, and local and state agencies to coordinate assistance and information for survivors, family, and friends, either by telephone or on-scene if launched to the accident. TDA remains a primary point of contact to survivors, family, and friends during the course of the investigation and provides updates on the release of information associated with it.

Short-term Counseling & Referrals

​Short-term emotional support services and referrals are available at the request of survivors, families, or friends at no cost through our partnership with the American Red Cross. ​Additional information can be provided about these support services upon request. 

Victim Identification Process

​In the US, medical examiners and coroners are responsible for identification, determination of cause and manner of death, and death certification for individuals that either die within their jurisdiction or are transported to their jurisdiction if a death occurs over water. TDA can provide contact information for the appropriate authority upon request.

Personal Effects

​The NTSB may take custody of personal effects like personal electronic devices​ or other items relevant to the investigation. Depending on condition, these items may be returned to the owner or a designated​ family member typically at the conclusion of the investigation. Personal effects not collected by the NTSB may be collected by the medical examiner or coroner, law enforcement or another agency involved in the response. TDA can assist with questions about personal effects retained by the NTSB or provide contact information for other agencies that may have personal effects in their custody if known.

Accident Vessel

​The NTSB has the authority to retain control of and manage access to the accident vessel during the investigation. TDA can assist with questions regarding status of vessel retained by the NTSB.

Media Interactions

​TDA does not coordinate interviews with media for survivors, family members, or friends; however, media representatives may attempt to make contact after an accident occurs. The NTSB will not release the identities of victims or survivors of accidents, but this information may be released by the transportation operator involved or local authorities where the accident occurred.

Marine Accident Investigation Process

​​Due to the possible complexity of marine accidents and the extensive nature of the investigation process, a marine accident investigation often requires 12 to 24 months to complete. Depending on the circumstances of the accident, the IIC along with other NTSB investigators and party members may travel to the accident location to collect information. The NTSB has the authority to designate organizations, corporations, or agencies as parties to the investigation. Only representatives who can provide technical or specialized expertise are permitted to serve as a party member and report directly to the NTSB. The NTSB will not determine the cause of an accident while on scene.

The following are reports and products that can be issued during the investigation:

  • The preliminary report provides a synopsis of factual information collected during the on-scene phase of the investigation. This report is typically available a few weeks after the accident.
  • The final report provides a summary of relevant factual information, analysis, findings, probable cause, and safety recommendations issued or reiterated as​ a result of the investigation.
  • An accident brief consists of a short accident narrative, probable cause, and if issued, safety recommendations. Briefs are normally limited to factual information but may contain analysis.​

The report or brief replaces the preliminary report and is typically available 12 to 24 months following the accident.

You can access NTSB reports by searching the NTSB’s Case Analysis and Reporting Online Search (CAROL).

An accident docket contains relevant factual information collected during an accident investigation that is used in the development of reports, briefs, and safety recommendations. The docket is available to access at an appropriate time during the investigation, or at its conclusion.

Many investigations result in safety recommendations or safety alerts. The NTSB can issue these at any time during the investigation process.

Staying Informed​

​If you are requesting information related to a marine accident investigation, please complete an Investigation Update Request Form, or contact us at assistance@ntsb.gov ​ for additional assistance.


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